From: Ralf Baechle <ralf@linux-mips.org>
To: "Kevin D. Kissell" <KevinK@mips.com>
Cc: linux-mips@linux-mips.org, Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Subject: Re: [PATCH] ret_from_irq adjustment
Date: Sun, 8 Oct 2006 22:44:43 +0100 [thread overview]
Message-ID: <20061008214443.GA6254@linux-mips.org> (raw)
In-Reply-To: <006501c6eb07$4fbf66c0$8003a8c0@Ulysses>
On Sun, Oct 08, 2006 at 08:26:44PM +0200, Kevin D. Kissell wrote:
> While setting up ra "by hand" and transferring control via the jr
> is a reasonable optimization, you're otherwise breaking things for SMTC.
> While the comments are misleading (they accurately described an earlier
> version of the code), the function being called here is ipi_decode(), which
> needs a pt_regs * in the first argument (hence the copy of the sp), and
> the pointer to the IPI message descriptor in the second.
>
> Do you have access to a 34K to test changes to SMTC? I'd have
> expected this one to have been pretty quickly fatal.
The shakeup of the code by the recent series of pt_regs related cleanups
is pretty massive. As of last night I only had uniprocessor support
working again. VSMP and SMTC were broken; actual multi-core CPU not
tested yet.
Ralf
next prev parent reply other threads:[~2006-10-08 21:44 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-08 16:24 [PATCH] ret_from_irq adjustment Atsushi Nemoto
2006-10-08 18:26 ` Kevin D. Kissell
2006-10-08 18:26 ` Kevin D. Kissell
2006-10-08 21:44 ` Ralf Baechle [this message]
2006-10-09 10:43 ` Kevin D. Kissell
2006-10-09 10:43 ` Kevin D. Kissell
2006-10-09 13:53 ` Ralf Baechle
2006-10-09 14:40 ` Atsushi Nemoto
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